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Comet Hop United States of America Hop

Comet Hop

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Purpose:Dual
Country:United States of America (USA)
International Code:COM

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Purchase Comet Hops

Comet hops are available to be purchased from multiple suppliers. We've conveniently linked to the most popular hop suppliers as well as Amazon.com. Every supplier may have different prices, harvest years and amounts available for purchase.

Adventures in Homebrewing Austin Homebrew Supply Hops Direct Homebrew Supply Northern Brewer Atlantic Brewing Supply More Beer! Yakima Valley Hops

Origin of Comet Hops

Comet was originally released as a high alpha by the USDA in 1974. Its parentage is English Sunshine and a native American hop giving it a wild American characteristic. Commercial production ceased in the 1980s in favor of newer super-alpha hops.

Flavor & Aroma Profile of Comet Hops

Comet is a dual-purpose hop that can be used in all hop additions throughout the brewing process.

Comet hops have aroma descriptors that include subtle, wild American grassy and grapefruit.

Tags: #grassy  #grapefruit  #wild  



Brewing Values for Comet Hops

These are the common ranges that we've seen with Comet hops over the years. Each year's crop can yield hops that have slightly different qualities, so these number ranges are based on history.

Alpha Acid % (AA)
Alpha acids are the main source of bitterness in beer. Longer boil times will result in isomerization of more alpha acids leading to increased bitterness.
8-12.4%
10.2% avg
Beta Acid %Beta acids are a component of hop resins responsible for contributing volatile aromatic and flavor properties. Beta acids contribute no bitterness.3.0-6.0%
4.5% avg
Alpha-Beta RatioThe ratio of alpha to beta acids dictates the degree to which bitterness fades during aging. 1:1 ratios are common in aroma varieties.1:1 - 4:1
3:1 avg
Hop Storage Index (HSI)The HSI indicates the percent of alpha and beta acids lost after 6 months of storage at room temperature (68°F or 20°C).33% (Fair)
0.326
Co-Humulone as % of AlphaLow cohumulone hops may impart a smoother bitterness when added to the boil as opposed to higher ones that add a sharper bitterness to the final beer. Learn more »34-45%
39.5% avg
Total Oils (mL/100g)These highly volatile, not very soluble oils are easily boiled off, but add flavor and aroma to the finished beer when added very late in the boil or during fermentation. Learn more »1.0-2 mL
1.5mL avg
Total Oil Breakdown:
›  MyrceneFlavors: resinous, citrus, fruity (β-myrcene) 40-55%
47.5% avg
›  HumuleneFlavors: woody, noble, spicy (α-caryophyllene) 1-2%
1.5% avg
›  CaryophylleneFlavors: pepper, woody, herbal (β-caryophyllene) 10-15%
12.5% avg.
›  FarneseneFlavors: fresh, green, floral (β-farnesene) 0-1%
0.5% avg
›  All OthersIncluding β-pinene, linalool, geranoil & selinene 27-49%

Beer Styles using Comet Hops

Some popular beer styles that make use of the Comet hop include Ale & Lager.

Comet Hop Substitutions

If the Comet hop is hard to find or if you are simply out of it on brew day, you can try to substitute it with a similar hop. The old way of chosing replacement hops was done by experience and "feel". There is nothing wrong with that way. However, we wanted to build a data-driven tool to find your Comet substitutions.

Experienced brewers have chosen the following hops as substitutions of Comet:

Is Comet available as Cryo/Lupulin powder?

Unfortunately, there is no lupulin powder version of the Comet hop. Neither Yakima Chief Hops (Cryo/LupuLN2) nor Haas (Lupomax) have created versions of this hop in lupulin powder form yet. This new type of hop product is pure concentrated lupulin powder, which leads to more flavor when used in the whirlpool or dry hop additions.


If you see an error in our data, please let us know!

We are not affiliated with any hop manufacturer. All copyrights and data are provided by their respective owners.

References:
  1. https://beermaverick.com/the-most-common-hops-used-in-ipas/
  2. https://beermaverick.com/analyzing-the-usa-hop-production-statistics-of-2019/

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